Mattress Buying Guide: How to Choose the Right Mattress in 7 Steps
In this guide from The Sleep Shop, we keep it simple and practical so you can shop with confidence. In this guide:
- Pick the right size for your space
- Match firmness to your sleep position
- Choose a construction that fits your needs
- Consider temperature and allergies
- Check delivery, trials and recycling
- Make your shortlist and compare
- Set your budget (and stick to it)
Set your budget (and stick to it)
Decide a realistic range before you browse. Most shoppers fall into three tiers: value, mid-range, and premium. Focus on overall support and durability—not just depth or a fancy name.
Browse The Sleep Shop mattresses
Pick the right size for your space
Measure your room and existing frame. UK sizes are Single 90×190cm, Small Double 120×190, Double 135×190, King 150×200, Super King 180×200. Allow walking clearance on both sides.
Browse The Sleep Shop mattresses
Match firmness to your sleep position
Side sleepers usually prefer medium to medium-soft comfort for pressure relief; back and stomach sleepers often do best with medium-firm to firm for spinal support.
Browse The Sleep Shop mattresses
Choose a construction that fits your needs
Pocket springs offer bounce, airflow and strong edge support. Memory foam excels at pressure relief and motion isolation. Hybrids blend both; latex suits allergy-conscious hot sleepers.
Browse The Sleep Shop mattresses
Consider temperature and allergies
Run warm? Look for breathable covers, springs, latex or gel-infused foams. For allergy concerns, consider latex or closed-cell foams and removable, washable protectors.
Browse The Sleep Shop mattresses
Check delivery, trials and recycling
Look for options like next-day delivery, old-mattress removal, sleep trials and clear warranty terms. Add a protector from day one to extend lifespan.
Browse The Sleep Shop mattresses
Make your shortlist and compare
Compare 3–5 options on firmness, height, materials, certifications and total cost of ownership. Read independent reviews and verify warranty coverage.
Browse The Sleep Shop mattresses
FAQs
How long does a mattress last?
On average 7–10 years, depending on materials, usage and care. Use a protector and rotate regularly.
Do I need a box spring?
Most UK frames don’t use box springs. Slatted or divan bases are common—ensure slats are no more than ~7cm apart.
Which mattress is best for back pain?
Generally, a medium-firm pocket sprung or hybrid with zoned support. Seek medical advice for persistent pain.